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1.
Six new species of the genus Richtersia Steiner, 1916 are described from the Mediterranean Sea: R. bathyalis sp.n., R. spinosa sp.n., R. heipi sp.n., R. mediterranea sp.n., R. staresensis sp.n. and R. coomansi sp.n. Some morphological adaptations of R. bathyalis, R. spinosa and R. heipi are discussed in relation to their small body size. The structure of the stomatal region, labial region and spicules is described in detail and probably holds for the entire genus.  相似文献   

2.
Three new species of the recently discovered, and hitherto monotypic, feather mite genus Nanopterodectes Mironov, 2009 are described: N. acutirostris n. sp. from Stymphalornis acutirostris Bornschein, Reinert & Teixeira, N. mentalis n. sp. from Dysithamnus mentalis (Temminck), and N. leucopterus n. sp. from Pyriglena leucoptera (Vieillot). This feather mite genus is currently restricted to passerine birds of the Neotropical family Thamnophilidae in Brazil. A key to the known species of Nanopterodectes is presented for both sexes.  相似文献   

3.
A new feather mite, Allopsoroptoides galli n. g., n. sp. (Psoroptoididae: Pandalurinae), is described from the domestic chicken, Gallus gallus (Linnaeus) (Galliformes: Phasianidae), from Brazil. This is the first record of a representative of the feather mite family Psoroptoididae from an avian host of the order Galliformes. The new genus is closely related to the genus Cygnocoptes Fain & Bochkov, 2003 but clearly differs from the latter and all other genera of the family by the loss of four median pairs of hysteronotal setae (c1, d1, e1, and h1) in both sexes and by the unique shape of the male opisthosoma. Instead of the bilobate opisthosoma, the male opisthosoma in this genus has a narrow and long median projection, ending with a pair of semi-ovate terminal lamellae. These mites were first detected during a mange outbreak in several commercial poultry facilities in the state of São Paulo, Brazil.  相似文献   

4.
A new genus Simplicaris (Copepoda, Harpacticoida, Parastenocarididae) is established to accommodate two species collected from deep groundwater in Italy, S. lethaea sp. nov. and S. veneris (Cottarelli & Maiolini, 1980) comb. nov. Parastenocaris hippuris Hertzog, 1938 and P. aedes Hertzog, 1938 are ranked as incertae sedis within the genus. Members display complete absence of leg 5 in both sexes and an unusual elongation of the first exopodal segments of legs 1–4, in which exp-1 is distinctly longer than exp-2 or -3, or as long as exp-2 and -3 combined. As the systematic status of the family Parastenocarididae and of the type genus Parastenocaris is still in flux, a list of phylogenetically informative characters is proposed, along with a discussion of their various states in representative members of the family. The genus Parastenocaris sensu stricto is redefined to comprise only the brevipes -group. The remaining members of the genus are considered Parastenocaris sensu lato pending a thorough revision of the family.  © 2004 The Linnean Society of London, Zoological Journal of the Linnean Society , 2004, 140 , 417−436.  相似文献   

5.
ZW Yin  LZ Li 《ZooKeys》2012,(215):33-39
Two new species, Batricavus abdominalis Yin & Li, sp. n. and Batricavus hainanensis Yin & Li, sp. n. are described from Hainan, South China, with male habitus and major diagnostic features illustrated. Batricavus tibialis Yin & Li is newly recorded from Zhejiang, East China. Keys to both sexes of the genus are included.  相似文献   

6.
Two new extant species of the fossil genus Alavesia Waters & Arillo (A. brandbergensis sp.n. and A. daura sp.n. ) are described from the Brandberg Massif, Namibia. The genus is reassigned to the family Atelestidae (subfamily Atelestinae) on the basis of male terminalia (elongate gonocoxal apodemes, ventral apodemes, subapical surstylus), female terminalia (absence of tergum 10) and a three‐articled stylus. This is the first record of Atelestidae from the Afrotropical Region. A genus‐level phylogeny of the Atelestidae is resolved, in which Alavesia is the sister genus to the remaining genera of the Atelestinae. The biogeographic history of the genus is briefly discussed, as is the significance of this and other relict Diptera on the Brandberg.  相似文献   

7.
Two ncw species of the family Pterastericolidae which inhabit starfish arc dcscribcd. Pterastericola bergensis sp.n. from thc oesophagus and cardiac stomach of Psilaster andromecla has posterior gonopore and lateral vitellaria. Pterastericola asamushii sp.n. from the pyloric caeca of Astropecren scopurius has unciliated epithelium postcriorly and an anterior gonopore. A cladistic analysis of thc phylogcny of the Pterastcricolidae is presented. The withdrawal of the genus Trilohorhynchus is proposed.  相似文献   

8.
The genus Bewsiella is considered to comprise a considerable number of species, despite having been regarded as monotypic. The structure of the male spermadactyl is proposed as a key character for separating congeneric species. This character seems likely to bear phylogenetic information on both the mites themselves and their hosts. Since the male of Bewsiella fledermaus Domrow, the type-species, has not been found, it is impossible to define the morphology of this species based on both sexes. Consequently, all mites that share many characters with the female of B. fledermaus are placed in a B. fledermaus species group. B. aelleni (Till) is considered as a valid species and both sexes and the protonymph are redescribed and illustrated. B. nycteris n. sp., B. emballonuris n. sp., B. cloeotis n. sp., B. haradai n. sp. and B. coelopos n. sp. are described and illustrated. The genus Bewsiella was originally allocated to the family Laelapidae and later transferred to the family Macronyssidae. Recently, the genus was returned to the Laelapidae, and some evidence supporting this action was obtained during the present study, but further studies are required for confirmation.  相似文献   

9.
Stephos cryptospinosus sp. nov., a new species of calanoid copepod,is described from Western Mediterranean coastal waters. It differsfrom other species of the genus in the structure of the fifthlegs in both sexes, and in having a small spinous process onthe posterolateral margins of the last prosomite in both sexes.  相似文献   

10.
研究了中国模尖蛾属MeleonomaMeyrick ,其中记述 2新种 :面模尖蛾M .facialisLietWang ,sp .nov .和软颚模尖蛾M .malacognathaLietWang ,sp .nov .。绘制了雌雄外生殖器特征图 ,给出了中国模尖蛾属分种检索表。模式标本保存在南开大学生物系标本室。  相似文献   

11.
A new genus and species of heterotrophic dinoflagellate, Cryptoperidiniopsis brodyi gen. et sp. nov., are described. This new species commonly occurs in estuaries from Florida to Maryland, and is often associated with Pfiesteria piscicida Steidinger et Burkholder, Pseudopfiesteria shumwayae (Glasgow et Burkholder) Litaker et al., and Karlodinium veneficum (Ballantine) J. Larsen, as well as other small (<20 μm) heterotrophic and mixotrophic dinoflagellates. C. brodyi gen. et sp. nov. feeds myzocytotically on pigmented microalgae and other microorganisms. The genus and species have the enhanced Kofoidian plate formula of Po, cp, X, 5′, 0a, 6″, 6c, PC, 5+s, 5″′, 0p, and 2″″ and are assigned to the order Peridiniales and the family Pfiesteriaceae. Because the Pfiesteriaceae comprise small species and are difficult to differentiate by light microscopy, C. brodyi gen. et sp. nov. can be easily misidentified.  相似文献   

12.
This study reviews the Ptilocodiidae from South China Sea,including three species.The diagnoses of the family and each genus are provided.A new genus,Tregouboviopsis Guo,Xu & Huang,gen.nov.is erected,based on the monotypy,Tregouboviopsis perradialis (Xu,Huang & Du,2012) comb.nov.,which is transferred from the genus Tregoubovia.A free eumedusoid ofHydrichthella ocellata Xu,Huang & Wang,sp.nov.is described in the present paper.A key to known genera of family Ptilocodiidae is presented.All type specimens are deposited in the South China Sea Fisheries Research Institute,Chinese Academy of Fishery Science.  相似文献   

13.
On the basis of foregut anatomy and embryonic/larval shell morphology, the radula-less conoidean gastropod genus Clathromangelia Monterosato, 1884 is transferred to the subfamily Daphnellinae (family Turridae). The Lower Pliocene to Recent species arc reviewed. The type species is Pleurotoma granum Philippi, 1844, Recent from Sicily. C. quadrillum Dujardin, 1837 a fossil species described from the Miocene (and ranging to the Lower Pliocene) is here considered a distinct species, with planktotrophic larval development. Clathromangelia strigillata Pallary, 1904 from the Gulf of Gabè (Tunisia) is figured and redescribed. Clathromangelia loiselieri Oberling, 1970 (lectotype here selected) is a senior synonym of C. fehrae (emend. pro C. fehri ) Aartsen & Zenetou, 1987. Three new species are described and figured from the Italian Pliocene: C. tavianii sp. n., C. elvirae sp. n. and C. marinae sp. n.  相似文献   

14.
Stilestrongylus peromysci n. sp. collected from Peromyscus difficilis (Hidalgo state, México), differs from other species in the genus in number of the spines (30) in the synlophe (both sexes) and because the eighth ray arises from the root of the ninth ray; S. hidalguensis n. sp. parasitised Peromyscus sp. and differs from all other congeneric species in the presence of 24 spines in the male synlophe and in the arrangement of the bursal rays (2-2-1 in the right lobe and 2-3 in the left lobe). A key to the species of Stilestrongylus is provided.  相似文献   

15.
A new dustywing genus and species,namely Cretaconiopteryx grandis gen.& sp.nov.,from the mid-Cretaceous amber of Myanmar is herein described in the lacewing family Coniopterygidae.The new genus is distinguished from all other dustywing species by the combination of following morphological features:relatively large body-size,comparatively rich crossvenation,origin of RP+MA near wing base in both fore-and hindwing,forewing RA and RP terminally fused into a loop,and proximally zig-zagged forewing CuP.A new subfamily,Cretaconiopteryginae subfam,nov.,is erected based on this spectacular new genus.The new subfamily might represent the basalmost lineage of known coniopterygids.  相似文献   

16.
Seven new species of umagillid turbellarians from the intestine of aspidochirote holothurians of the Great Barrier Reef are described: Cleistogamia heronensis sp.n., C. longicirrus sp.n., C. pulchra sp.n., C. pallii sp.n., C. pyriformis sp.n. and Wahlia stichopi sp.n. as well as Paranotothrix queenslandensis gen.n. sp.n. The new genus is recognized as distinct from Notothrix Hickman, 1955 because the female system lacks a bursal valve, a significant characteristic within the Umagillidae. Examination of this and other characteristics of the family reveal that the division of the family by Stunkard & Corliss in 1950 into the sub-families Collastominae Wahl, 1910, Bicladinae Stunkard & Corliss, 1950 and Umagillinae Wahl, 1910 is supported; further, within the Umagillinae, four subgroups may be recognized: within holothurians are ( i ) the Cleistogamia group with a secondary uterus, within this group Ozametra elegans and O. striata are placed in Seritia gen.n. differing from Ozametra by the presence of both a bursal valve and a cuticular stylet, ( ii ) the Anoplodium group with a single ovary and a muscular (not cuticular) male intromittent organ and ( iii ) the Umagilla group in which Monticellina longitubu becomes a junior synonym of U. forskalensis; within echinoids ( iv ) the Syndesmis group in which Syndisyrinx is recognized a valid genus for those worms with a bursal valve and Syndesmis for those lacking this structure. Marcusella is suppressed. A visual key based upon presumed primitive and derived states is given as is a full host check list of the Umagillidae.  相似文献   

17.
李后魂  王淑霞 《昆虫学报》2002,45(2):230-233
研究了中国模尖蛾属Meleonoma Meyrick,其中记述2新种:面模尖蛾 M. facialis Li et Wang, sp. Nov. 和软颚模尖蛾 M. malacognatha Li et Wang, sp. Nov.。绘制了雌雄外生殖器特征图,给出了中国模尖蛾属分种检索表。模式标本保存在南开大学生物系标本室。  相似文献   

18.
Several felt scale (Eriococcidae) lineages show deep, phylogenetically constrained, host use. The most diverse of these host‐constrained lineages is Australian, associated with plants in the family Myrtaceae, and the most diverse sublineage within this group is associated with Eucalyptus. Here we use Bayesian analysis of morphological data to estimate relationships among the eucalypt‐feeding species of this group. We identify an unusual species for which we erect the monotypic genus Heathcotia Hardy & Beardsley gen.n. , with type species Heathcotia crypta Hardy & Beardsley sp.n. , and recover a clade comprised of six new species closely related to Lachnodius hirtus Maskell. We erect the genus Lobimargo Hardy & Gullan gen.n. for the latter clade, designate Lobimargo sagittisetus Hardy & Beardsley sp.n. as its type species, transfer Lachnodius hirtus to the genus as Lobimargo hirtus (Maskell) comb.n. and describe the five other new species: Lobimargo brookesae Hardy & Beardsley sp.n., Lobimargo donaldsoni Hardy & Gullan sp.n. , Lobimargo latrobeus Hardy & Beardsley sp.n. , Lobimargo rhipidotrichus Hardy & Gullan sp.n. and Lobimargo williamsi Hardy & Gullan sp.n. A lectotype is designated for L. hirtus. The adult female of each species, the first‐instar nymph of L. sagittisetus, the second‐instar female of L. hirtus and the adult male of L. williamsi are described and illustrated. A key is provided to the adult females of all eriococcid genera found on eucalypts and of all Lobimargo species. Adult females of Lobimargo have been found on stems, sometimes causing shallow pits, and on foliage or under bark, but may move to the latter habitat for oviposition.  相似文献   

19.
Pectinospirura argentata Wehr, 1933, Skrjabinoclava andersoni n. sp. and acuariid larvae, collected from the proventriculus of the kelp gull Larus dominicanus from coastal Buenos Aires, Argentina, are described. This is the first record of the genus Pectinospirura Wehr, 1933 from South America and from the kelp gull. The measurements of both sexes are given because there are some differences with previously described specimens of P. argentata; the male is smaller with smaller spicules and the female is larger with smaller eggs. Skrjabinoclava andersoni n. sp. can be distinguished for all other species in the genus by the morphology of both spicules and by the cuticle which is not inflated anteriorly. This genus is reported for the first time in the kelp gull and from Argentina.  相似文献   

20.
The genus Thubana Walker (Lepidoptera: Lecithoceridae: Torodorinae) in Indonesia is reviewed, with three known species from Java and four additional new species: Th. raphidodea sp. nov. from Sulawesi, Indonesia and Malaysia; and Th. erycinae sp. nov., Th. apiculalis sp. nov. and Th. sellarius sp. nov. from Sumatra, Indonesia. The previously known species from Java, Th. costimaculella (Snellen), is redescribed for the wing venation and genitalia of both sexes; however, the syntype of Th. heylaertsi (Snellen) is observed only by its photograph. No specimens of Th. heylaertsi and Th. xylogramma Meyrick were found during this study. Photos of all known species, except Th. xylogramma Meyrick, and a key to species are provided. A catalog for the genus with all 46 known species in the world is given.  相似文献   

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